<?php
//remove the utf-8 boms  
 //by magicbug at gmail dot com  
    
 if (isset($_GET['dir'])){ //config the basedir  
     $basedir=$_GET['dir'];  
 }else{  
     $basedir = '.';  
 }  
   
 $auto = 1;  
   
 checkdir($basedir); 
   
 function checkdir($basedir){ 
     if ($dh = opendir($basedir)) { 
         while (($file = readdir($dh)) !== false) { 
             if ($file != '.' && $file != '..'){ 
                 if (!is_dir($basedir."/".$file)) { 
                     echo "filename
 $basedir/$file ".checkBOM("$basedir/$file")." <br>"; 
                 }else{ 
                     $dirname = $basedir."/".$file; 
                     checkdir($dirname); 
                 } 
             } 
         } 
     closedir($dh); 
     } 
 } 
   
 function checkBOM ($filename) { 
     global $auto; 
     $contents = file_get_contents($filename); 
     $charset[1] = substr($contents, 0, 1);  
     $charset[2] = substr($contents, 1, 1); 
     $charset[3] = substr($contents, 2, 1);  
     if (ord($charset[1]) == 239 && ord($charset[2]) == 187 && ord($charset[3]) == 191) { 
         if ($auto == 1) { 
             $rest = substr($contents, 3); 
             rewrite ($filename, $rest); 
             return ("<font color=red>BOM found, automatically removed.</font>"); 
         } else { 
             return ("<font color=red>BOM found.</font>"); 
         } 
     }  
     else return ("BOM Not Found."); 
 } 
   
 function rewrite ($filename, $data) {
     $filenum = fopen($filename, "w"); 
     flock($filenum, LOCK_EX); 
     fwrite($filenum, $data); 
     fclose($filenum); 
} ?>